Add implicit api controller actions

For some reason this is required after upgrading versioncake to 3.0

I suspect this is because rails won't create the action by detecting the
views with the version suffix.

api/app/controllers/spree/api/config_controller.rb

@@ -1,6 +1,11 @@
 module Spree
   module Api
     class ConfigController < Spree::Api::BaseController
+      def show
+      end
+
+      def money
+      end
     end
   end
 end

api/app/controllers/spree/api/line_items_controller.rb

@@ -8,6 +8,9 @@ class LineItemsController < Spree::Api::BaseController
       before_filter :load_order, only: [:create, :update, :destroy]
       around_filter :lock_order, only: [:create, :update, :destroy]
 
+      def new
+      end
+
       def create
         variant = Spree::Variant.find(params[:line_item][:variant_id])
         @line_item = @order.contents.add(

api/app/controllers/spree/api/products_controller.rb

@@ -15,6 +15,9 @@ def index
         respond_with(@products)
       end
 
+      def new
+      end
+
       def show
         @product = find_product(params[:id])
         expires_in 15.minutes, public: true

api/app/controllers/spree/api/taxonomies_controller.rb

@@ -5,6 +5,9 @@ def index
         respond_with(taxonomies)
       end
 
+      def new
+      end
+
       def show
         respond_with(taxonomy)
       end

api/app/controllers/spree/api/taxons_controller.rb

@@ -14,6 +14,9 @@ def index
         respond_with(@taxons)
       end
 
+      def new
+      end
+
       def show
         @taxon = taxon
         respond_with(@taxon)